Too little of the money the federal government spends on breast cancer research goes toward finding environmental causes of the disease and ways to prevent it, according to a new report from a group of scientists, government officials and patient advocates established by Congress to examine the research. The report, “Breast Cancer and the Environment — Prioritizing Prevention,” focuses on environmental factors, which it defines broadly to include behaviors, like alcohol intake and exercise; exposures to chemicals like pesticides, industrial pollutants, consumer products and drugs; radiation; and social and socioeconomic factors. The 270-page report notes that scientists have long known that genetic and environmental factors contribute individually and also interact with one another to affect breast cancer risk.